This application claims priority of Chinese Patent Application No. 201811157253.4, filed on Sep. 30, 2018, the entire contents of which are hereby incorporated by reference.
The present disclosure generally relates to the field of display technologies and, more particularly, relates to a display panel and a display device.
In current display device technologies, display panels mainly include two major types: a liquid crystal display panel and an organic self-luminous display panel. In a liquid crystal display panel, an electric field capable of controlling deflection of liquid crystal molecules is formed by applying an electric voltage between a pixel electrode and a common electrode. The electric field controls light transmission to realize a display function of the display panel. An organic self-luminous display panel uses an organic electroluminescent material. When an electric current passes through the organic electroluminescent material, the electroluminescent material emits light, realizing a display function of the display panel.
With the application of display technologies in smart wearables and other portable electronic devices, design of electronic products has been pursuing user-friendly experiences. Further, sensory experiences of users are becoming significant in the design of electronic products. For example, performances such as wide viewing angle, high resolution, narrow border, and high screen-to-body ratio, have become selling points of various types of electronic products. Therefore, it is urgent to provide a display panel and a display device with a narrow border and a high screen-to-body ratio.
The disclosed methods and structures are directed to solve one or more problems set forth above and other problems in the art.
One aspect of the present disclosure includes a display panel. The display panel includes a display area, and the display area is disposed with a plurality of data lines extending along a first direction. The display area has a notch, and the boundary of the display area is recessed into the display area in a second direction to form the notch. The display area includes a first display area and two second display areas. The display panel also includes a non-display area disposed around the display area. The non-display area includes a first non-display area and two second non-display areas located in the notch. The first non-display area extends along the first direction, and is adjacent to the first display area in the second direction. In the first direction, each of the second non-display areas is adjacent to one of the second display areas. The display panel also includes a drive circuit, and the drive circuit includes a plurality of shift registers. The second direction intersects with the first direction. In the second direction, the first display area is located at one side of the notch. In the first direction, the two second display areas are located at two sides of the notch respectively, and the two second display areas are adjacent to the first display area. The display area includes a plurality of signal lines extending along the second direction, and one shift register is electrically connected to at least one signal line. The second non-display areas are disposed with the shift registers, and the shift registers disposed in the second non-display areas are electrically connected to the signal lines located in the first display area.
Another aspect of the present disclosure includes a display device. The display device includes a display panel comprising a display area, and the display area is disposed with a plurality of data lines extending along a first direction. The display area has a notch, and the boundary of the display area is recessed into the display area in a second direction to form the notch. The display area includes a first display area and two second display areas. The display panel also includes a non-display area disposed around the display area. The non-display area includes a first non-display area and two second non-display areas located in the notch. The first non-display area extends along the first direction, and is adjacent to the first display area in the second direction. In the first direction, each of the second non-display areas is adjacent to one of the second display areas. The display panel also includes a drive circuit, and the drive circuit includes a plurality of shift registers. The second direction intersects with the first direction. In the second direction, the first display area is located at one side of the notch. In the first direction, the two second display areas are located at two sides of the notch respectively, and the two second display areas are adjacent to the first display area. The display area includes a plurality of signal lines extending along the second direction, and one shift register is electrically connected to at least one signal line. The second non-display areas are disposed with the shift registers, and the shift registers disposed in the second non-display areas are electrically connected to the signal lines located in the first display area.
Other aspects of the present disclosure can be understood by those skilled in the art in light of the description, the claims, and the drawings of the present disclosure.
The following drawings are merely examples for illustrative purposes according to various disclosed embodiments and are not intended to limit the scope of the present disclosure.
To make the objectives, technical solutions and advantages of the present invention more clear and explicit, the present invention is described in further detail with accompanying drawings and embodiments. It should be understood that the specific exemplary embodiments described herein are only for explaining the present invention and are not intended to limit the present invention.
Reference will now be made in detail to exemplary embodiments of the present invention, which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts.
It should be noted that arrangements of components and steps, numerical expressions and numerical values in exemplary embodiments are not intended to limit the scope of the present disclosure.
Techniques, methods and apparatus known to those skilled in the relevant art may not be discussed in detail, but where appropriate, these techniques, methods and apparatus should be considered as a part of the disclosed embodiments.
The present disclosure provides a display panel.
As shown in
As shown in
As shown in
In a conventional display panel, signal lines in a display area are electrically connected to shift registers in a non-display area adjacent to the display area. In a display panel of the present disclosure, shift registers in the second non-display areas are electrically connected to signal lines in the first display area for driving the signal lines in the first display area. Therefore, the number of shift registers in the first non-display area may be reduced, and moreover, maybe no shift register is disposed in the first non-display area. This configuration may save space of the first non-display area, and narrow the first non-display area.
In one embodiment, the numbers of shift registers respectively disposed in the two second non-display areas are same. The shift registers for driving the signal lines in the first display area may be uniformly disposed in the two second non-display areas, and the sizes of the two second non-display areas may be substantially same.
In one embodiment, as shown in
In some other embodiments, to reduce the number of the shift registers disposed in the non-display area, three signal lines arranged in sequence may be electrically connected to a same shift register.
Thus, as the shift registers located in the second non-display area are electrically connected to the first signal lines located in the first display area, the number of shift registers in the first non-display area may be reduced, and thus the first non-display area may be narrowed. Further, for each signal line, only one end is electrically connected to one shift register, so the number of shift registers disposed in the second non-display area and the third non-display area may be reduced, and thus the spaces of the second non-display area and the third non-display area may be saved. Moreover, as the first signal lines and the second signal lines are alternately disposed in the display area, display uniformity of the display area may be ensured.
The display panel provided by the present disclosure may be a liquid crystal display panel or an organic light emitting display panel.
When the display panel is a liquid crystal display panel, the display panel includes an array substrate and a color filter substrate that are oppositely disposed, and a liquid crystal molecular layer disposed between the array substrate and the color filter substrate. The drive circuit in the display panel includes a scan drive circuit, and the scan drive circuit includes a plurality of cascaded scan shift registers. The signal lines in the display panel include scan lines, and the scan drive circuit drives the scan lines. In one embodiment, the scan lines in the first display area adjacent to the notch in the second direction are electrically connected to the scan shift registers located in the second non-display areas. Therefore, the number of scan shift registers located in the first non-display area adjacent to the first display area may be reduced, and further, maybe no scan shift register is disposed in the first non-display area. As a result, this configuration may save the space of the first non-display area, and thus the first non-display area may be narrowed.
When the display panel is an organic light emitting display panel, the display panel includes an array layer, a display layer located above the array layer, a package structure, and a drive circuit. The display layer includes a plurality of organic light emitting components, and the package structure is disposed at a side of the display layer away from the array layer. The package structure may block water and oxygen, and prevent the organic light-emitting components from being damaged by water and oxygen. The drive circuit in the organic light emitting display panel includes a scan drive circuit and a light emitting drive circuit, and signal lines in the display panel include scan lines and light emitting control signal lines. The scan drive circuit includes a plurality of cascaded scan shift registers that are electrically connected to the scan lines. The light emitting drive circuit includes a plurality of cascaded light-emitting shift registers, and the light-emitting shift register are electrically connected to the light-emitting control signal lines.
An organic light emitting display panel may be implemented in several approaches. In one embodiment, only scan lines in the first display area adjacent to the notch in the second direction are electrically connected to scan shift registers located in the second non-display area. In another embodiment, only light emitting control signal lines in the first display area adjacent to the notch in the second direction are electrically connected to light emitting shift registers located in the second non-display area. In another embodiment, scan lines in the first display area adjacent to the notch in the second direction are electrically connected to scan shift registers located in the second non-display area, and meanwhile light emitting control signal lines in the first display area adjacent to the notch in the second direction are electrically connected to light emitting shift registers located in the second non-display area. Therefore, in certain embodiments, the number of scan shift registers disposed in the first non-display area adjacent to the first display area, and/or the number of the light emitting shift registers, may be reduced, and thus the first non-display area may be narrowed.
If the display panel is an organic light emitting display panel, when light-emitting shift registers and scan shift registers are simultaneously disposed in the second non-display areas, there are a plurality of arrangement approaches for the light-emitting shift registers and the scan shift registers. Exemplary arrangement approaches are provided in the embodiments shown in
In another embodiment, in one second non-display area, all shift registers are sequentially arranged in the second direction.
It should be noted that,
In some embodiments, shapes of the shift registers disposed in the second non-display area may follow the shapes illustrated in
In one embodiment, two ends of a scan line are electrically connected to two scan shift registers located at two sides of a display area to realize two-side drive of the scan line. As the drive signals are simultaneously provided at two ends of the scan line in the display area, the voltage signals on pixels electrically connected to the scan line are substantially same. The light-emitting control lines in the display area are cross-driven and controlled by the light-emitting shift registers located at two sides of the display area. Therefore, the numbers of light-emitting shift registers located in the non-display areas at two sides of the display area may be reduced, and thus the space of the non-display areas may be saved. Further, as the light-emitting shift registers or the scan shift registers are disposed in the second non-display areas, the space of the first non-display area may be saved, and thus the first non-display area may be narrowed.
In one embodiment, two ends of a scan line are connected to two scan shift registers respectively located at two sides of the display area, so two-side drive of the scan line may be achieved. Further, as two adjacent scan lines are connected to a same scan shift register, one scan shift register may drive two scan lines, so the number of scan shift registers may be reduced, and as a result, the non-display area may be narrowed. In addition, as two adjacent scan lines are connected to a same scan shift register, voltage signals on pixels electrically connected to the scan lines are substantially same, and thus the display uniformity may be ensured. Moreover, two ends of a light-emitting control signal line are connected to two light-emitting shift registers respectively located at two sides of the display area, and so two-side drive of the light-emitting control signal line may be realized. Furthermore, the light-emitting shift registers and the scan shift registers are disposed in second non-display areas, so the space of the first non-display area may be saved and thus the first non-display area may be narrowed.
In one embodiment, signal transmission of two data lines D1 located at two sides of the notch K and located in a same column may be achieved through the connection line L. Since no pixels are disposed at the area where the notch K is located, the number of sub-pixels electrically connected to the data line D1 located at two sides of the notch K is reduced, and so the load on the data line D1 is reduced. Therefore the display panel may have data lines with different loads. As shown in
Further, as shown in
Further, in one embodiment, a shift register may comprise a plurality of thin film transistors, and an active layer of the thin film transistor may be made of a material such as an oxide semiconductor material, a polycrystalline silicon semiconductor, an amorphous silicon semiconductor or the like, or a low temperature polysilicon material. Preferably, the active layer is made of a low-temperature polysilicon material. An active layer made of a low-temperature polysilicon material may have a fast electron migration rate and may shorten the response time of the thin film transistor. Moreover, a thin-film transistor made of a low-temperature polysilicon material may have a small area, and so the space occupied by the drive circuit in the non-display area may be saved.
In a display panel provided by the present disclosure, a notch may have a rectangle or a trapezoid shape, and in the above embodiments, a rectangle shape is used as an example.
The present disclosure further provides a display device, and
It may be seen from the above embodiments that in a display panel of the present invention, shift registers in a second non-display area are electrically connected to signal lines in a first display area to drive the signal lines in the first display area. This configuration may reduce the number of shift registers in the first non-display area, and maybe no shift register is disposed in the first non-display area. In this way, the space in the first non-display area may be saved, and thus the first non-display area may be narrowed.
The embodiments disclosed herein are exemplary only and not limiting the scope of this disclosure. Various combinations, alternations, modifications, or equivalents to the technical solutions of the disclosed embodiments can be obvious to those skilled in the art and can be included in this disclosure. Without departing from the spirit and scope of this invention, such other modifications, equivalents, or improvements to the disclosed embodiments are intended to be encompassed within the scope of the present disclosure.
Number | Date | Country | Kind |
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201811157253.4 | Sep 2018 | CN | national |